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Finding the Fourth Proportional to 219,021, 302,248.44 and 118,419

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Solution

The fourth proportional to 219,021, 302,248.44 and 118,419 is: 163,417.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,021 : 302,248.44 = 118,419 : x
  2. Step 2: Convert to fraction form
    219,021/302,248.44 = 118,419/x
  3. Step 3: Cross multiply
    219,021x = 302,248.44 × 118,419
  4. Step 4: Simplify right side
    219,021x = 35,791,958,016.36
  5. Step 5: Solve for x
    x = 35,791,958,016.36/219,021
  6. Step 6: Final answer
    x = 163,417.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.